Perforating machine



May l2, 1925.

N. S. WLK ET AL PERFORMING ncrm Fil'ed Nov. 17, 1921 QN uw.

IV u u t LL n.

May- 12, 192s.

. N. s. wELK ET AL PERFORATING MACHINE s sham-sheet' 2 Filed Nov. if?, 1921 fig 2 i)atented May l2, 1925@ UNITED stares PIENI OFFICE.

NELSON S. WELK AND ALEXANDER B. ROE, OF ATHENS, OHIO; SAID WELK ASSIGNOR OF HIS ENTIRE RIGHT TO THE IVICBEE BINDER COMPANY, OF ATHENS, OI-IIO.

PERFORATING; MACHINE.

Application led November 1'?, 1921. Serial No. 515,793.

T0 all whom t may concer/n.: Y

Be it known that we, NELSON S. WELK and ALEXANDER B. Ron, citizens of. the United States, residing at Athens, in the county of Athens and State of Ohio, have invented a new and useful Perforating Machine, of which the following is a specification.

Our invention relates to perforating` machines designed for use in preparing sheets for binding, and has for its object to produce a machine of strong, durable and relatively` simple, construction, wherein the sheets to be perforated will be forced downwardly over stationary rotating hollow drills, with adequate means being provided for clearing the cuttings from the hollows in the drills.

A further object is to provide an eflicient and quickly operated sheet perforating machine, functioning as a' power driven rotating punch, (rather than a drill) the punches being hollow to receive the cuttings which will be-forced therethrough to a receiving pan, thus eliminating the accumulation of waste cuttings around the machine.

A further object is to provide such a machine, constructed in such a manner that the application of pressure on the sheets to be perforated will also function to force the cuttings through the hollow drills.

A further object is to construct our machine invsuch a manner that the perforating drills will be below the sheets to be perforated, a yielding base, with perforations to receive the drills and permit their passage upwardly therethrough, being provided, so as to function for strengthening the drills and keeping them always in proper alinement.

Many other objects and advantages of our machine will be noted in the reading of the attached specifica-tion and claims, reference being had to the drawings, in which Figure l shows a. perspective viewof our machine, with leaves to be perforated in position therein and showing the` platform slightly depressed from its normal position, the dotted lines indicating the normall position of the platform, and the elevatedposition of the parts which operate to force the platform downwardly;

Figure Il shows a detail view, in elevation, of the evener device we use, the parts of the machine to which it is attached being shown in section;

Figure Ill is a detail view, in side elevation of one of the standards of our machine, also showing a portion of the platform and the spring which supports it and also a po-rtion of the pressure bar and its mountings, the dotted lines indicating the normal positions of certain of the parts;

Figure IV shows a front elevation view, partially in section, taken on the line 4-4 in Figure III;

Figure V shows a vertical, sectional, view of the drills and their' mo-untings; and

Figure VI shows a detail view,vin elevation, of a part ofthe drills and the worm gears attached to certain of them and which mesh with the drive shaft from the motor.

Referring 'to theV accompanying drawings the reference numeral 10 is used to indicate the base of our machine, and the numerals 11 and 12 companion, and parallel, standards projectingr vertically therefrom. The numeral 13 indicates a crossbar mounted to, and elevated slightly from, the base of the machine, said crossbar being in a horizontal plane and mounted immediately in the rear of the aforesaid standards.

The numeral 14 indicates a second crossbar mounted to, and elevated from, the first mentioned crossbar, the construction being such that the two crossbars 13 and 14- are parallel and'in a horizontal plane but spaced from each other. Journaled in these crossbars, and extending upwardly from the upper crossbar, are a plurality of drills 15, said drills being mounted -for rotation and each of same being provided with a worm gear 16 on its outer periphery, and being further provided with a second gear 1.7 on its outer periphery. Also journa-led in the crossbars are a plurality of drills which are mounted in juxtaposition with their companion drills 15, the drills 18 being provided with gears 19 to mesh with their companion gears 17 on the companion drills 15. A motor 20 is secured to the base of our Inachine and provided with a drive shaft 21, on which are worm gears 22 and Q3, designed to mesh with their respective worm gears 16 for driving of the drills 15. The worm gears 16, on the drills, are reversed as to adjacent drills and, obviously, the worm gears 22 and 23 are of the right pitch to mesh with their respective worm v'gears l'16. The construction is such that the drive shaflV 21 from the motor, in its rotation, will drive the drills 15 through the medium of vthe worm gears 22 and 23 .meshing with the worm gearsl, and the drills 15 will drive ytheir companion drills 18 through the medium of the gears 17 meshing with the gears 19.

All the drills are uniform in length and extend lupwardly to a given point. The drills are 'all hollow drills, as indicate-d by the numeral 24, and are provided with upper cutting` edges 25. A. removable pan 26 is secured below the crossbars 13.

The numeral l27 indicatesy the assembly base of our machine, Ion which the sheets are assembled and cvened. 'Normallyg vthis base maintains a position immediately above the upper cutting edges of the drills, and the base is lperforated, as shown at `28, to permit the passage therethrough of the drills. This base is mounted, .for lvertical slidable movement, on the standards l1 and 12, and `is supported in 'its normal position by coil springs 29 and 30, which -surround their respective standards and engage lugs 31'and 32, respectively, depending` from the sides of the assembly base and surrounding their respective-standards. Ahousing'plate 33 extends downwardly vfrom near the forward part of the assembly base, and in front of the drills, to a point sufficient to conceal the drills from observation from a point in 'front of the `machine, theY purpose of this housing being for general protection' from "the drilling mechanism of the machine.

The numeral 34 indicates an evener plate which assumes a position in engagement 'with thejupper surface of the 'assembly ibase. vThis evener plate is secured Ito a rod 35 which is mounted, for slidable movement, in 'a lug 36, and `a screw 37, mounted 'in the lug-3G, is designed to engage the rod 35 so as to retain the evener plate in `any desired P'OStOni f The numerals 38 and 39 indicate lugs, mounted for slidable movement, oney on each of thestandards 11 and 12, and at the upper ends-thereof. ln these vlugs ywehave mounted, *for rotation, gear Wheels 40 and 41, respectively, which Iare designed fto be inengagement, and proper mesh, with racks 42 and 43, respectively, extending from the upper vextremity of their yrespective standards to a "point in close proximity to the upper sur- -fface of the assembly base, when it is in `its normal position. 'The gear wheels 40 and V41 are .rigidly secured to a shaft 44, journaled rin y'the lugs, and to the ends of this shaft wehave securedprojecting arms 45 and '46, respectively, which arms are joined by cross bar 47 at their upper extremities.

device. n various parts of the machine without '1n Yany Also joining said lugs, and positioned in the rear of the standards, is a cross bar 4S which lies in a true horizontal position, and

, parallel with the assembly base. This cross bar is in line with the drills and in the under surface of the cross bar .we haveprovided means, in .line with the drills, .to receive the cutting ends of the drills, so that 'the drills will not be destroyed, or their efficiency impaired by coming inv Contact with 'this cross bar. This cross bar 48 is designed as a pressure bar for my machine as will be hereinafterdescribed.r 1

ln practical operation, the sheets "and covers to l'be bound,are placed upon the assembly base v27 and evened vagainst the evener plate 34. The motor is then started,

thus obviously rotating' -the `cutting drills. The operator then `grasps vthe cross bar v47 and pulls it rearwardly in a rotary movement, thus rotating the shaft 44 which, in turn, rotates simultaneously :the gear wheels 40 and 41. As these gear wheels arein mesh with their respective racks 42 and 43, itis obvious this movement will lower 'the pressure bar 48, which contacts the upperside y of the coverV and leaves to be bound. Pres sure is then applied to the cross bar 47, thus 'forcing the pressure bar 48 downwardly. The cove-r and leaves to be boundjare resting `upon the assembly base'27 and,as this base yields Aagainst the rcompression 'of the coil springs '29 and 30, -itpis k'obvious thek pressure of the pressure bar willl'force 4.the assembly l'base downwardly. This brings V4the covers and leaves to be bound indirect Obviously, the cuttings will fill the hollow drills and the vdownward pressure on the pressure bar will force the vcuttings out fthroughjth'e bottom of the hollow ldrills into the receiving pan 26. As before stated, this pan is removable so that, when desired, fthe'operatormay dispose ofthe cuttingsV which yhave accumulated therein.

The drawings which `accompany this application and the description of the same, embody the epreferable constructionzof our Minor changes may 'be `made in manner affecting the functions thereof,for departing fromour invention, .and we desire to be understood asnot wishing to limit our invention by the 4preceding description andthe drawings,lbut only by'thje claims which 'are hereto appended.

iis

Having thus described our invention, what we claim and desire to secureA by Letters Patent of the United States, is:

l. A perforating machine comprising a spring actuated assembly base with perforations therein; hollow drills mounted for rotation beneath the assembly base, the drills registering with the perforations; a pressure bar mounted for vertical movement above the assembly base and in alinement above the perforations; means to move the pressure bar downward to engagement with the material to be perforated and to continue said pressure downward until the drills have perorated the material and come into engage- Y ment with the pressure bar.

2. A perforating machine comprising a spring actuated assembly base with perforations therein; hollow drills mounted Jfor rotation beneath the assembly base, the drills registering with the perforations: a pressure bar mounted for vertical movement above the assembly base and in alinement above the perforations; means to move the pressure bar downward to engagement with the material to be perforated and to continue said pressure downward until the drills have perforated the material and come into engagement with the pressure bar; means to retain the assembly base in a normal position immediately above the drills.

3. In a binding machine hollow cutting A.

drills; an assembly base mounted for slidable vertical movement on the standards of the machine, with spring actuated means to retain the said base in a normal position above the cutting drills, there being perforaf tions in said base to register with the cutting drills; means to force the said assembly base downwardly over the cutting drills.

4. A perforating machine comprising a body portion in which a plurality of hollow drills are mounted for rotation an assembl base to receive the material to be perforate a pressure bar to be clamped against the material to retain it in permanent position, said pressure bar being in line with the drills and also being provided with drill receiving means which register with their respective drills; means to force the material against the rotating drills, substantially as shown and described.

NELSON S. WELK. ALEXANDER B. ROE. 

